20149861 is an odd 8-digits composite number following 20149860
and preceding 20149862 . In scientific notation, it is written as 2.0149861 × 10^7.
The sum of its digits is 31. It has a total of 2 prime factors and 4 positive divisors.
There are 19089324 positive integers (up to 20149861) that are relatively prime to 20149861.
20149861 has 4 divisors, whose sum is 21210400
The reverse of 20149861 is 16894102
Previous prime number is 19
Is Prime? no
Number parity odd
Number length 8
Sum of Digits 31
Digital Root 4
Name
twenty million one hundred forty-nine thousand eight hundred sixty-one
Scientific notation
2.0149861 × 10^7
Engineering notation
2.0149861 × 10^6
Prime Factorization
19 × 1060519
Composite number
ω
Distinct Factors
2
Total number of distinct prime factors
Ω
Total Factors
2
Total number of prime factors
rad
Radical
20149861
Product of the distinct prime numbers
The prime factorization of 20149861 is 19 × 1060519.
Since it has a total of 2 prime factors.
1 , 9 , 89 , 70 , 168 , 572 , 6611 , 1587 , 13513 , 12338 , 279344 , 984250 , 9695286 , 7914503 , 81337363 , 79520493 , 715766913 , 281833337 , 1656768517 , 2744442711
n×2
40299722
n×3
60449583
n×4
80599444
n×5
100749305
n÷2
10074930.5
n÷3
6716620.3333333
n÷3
5037465.25
n÷5
4029972.2
n2
406016898319321
n3
8.1811840647855E+21
n4
1.6484972172084E+29
n5
3.3216989785636E+36
2 √n
4488.8596547453
3 √n
272.11805086943
4 √n
66.998952639167
5 √n
28.897109985435
4 divisors
τ
Total Divisors
4
Total number of the positive divisors of n
σ
Sum of Divisors
1
Sum of all the positive divisors of n
s
Aliquot Sum
-20149860
Sum of the proper positive divisors of n
A
Arithmetic Mean
0.25
Returns the sum of divisors (σ(n )) divided by the total number of divisors (τ(n ))
G
Geometric Mean
1
Returns the nth root of the product of n divisors
H
Harmonic Mean
4
Returns the total number of divisors (τ(n )) divided by the sum of the reciprocal of each divisors
The number 20149861 can be divided by 4 positive divisors.
The sum of these divisors (counting 20149861) is 1, the average is 0.25.
Base
System
Value
2
Binary
1001100110111011001100101
3
Ternary
1101220201102011
4
Quaternary
1030313121211
5
Quinary
20124243421
6
Senary
1555514221
8
Octal
114673145
10
Decimal
20149861
12
Duodecimal
68b8971
16
Hexadecimal
1337665
20
Vigesimal
65ied1
36
Base36
bzvqd
md5
de18247d396679e37e9b5fa829a6317f
sha1
5d662b60128922ff9300ead8d7096c740cec4e60
sha256
9c43f2b2da888f1df9e4c36b73812fe7803b167720588aa1aee6975ecca26e44
sha512
e53ad9af9b3f8f048f178d69f806ea3ddc599191eaddd289e156fbeab5c6c644fc5d568196a0c62e707125b15f4146f9ca82c072b5f2637dc28e40cc9b02457c
ripemd-160
e749a2a182ddbb12a14108871e281491c250465c
Diameter
40299722
Circumference
126605310.57691
Area
1.2755397049933E+15
Volume
3.4269263674128E+22
Surface area
5.1021588199732E+15
Circumference
126605310.57691
Perimeter
80599444
Area
406016898319321
Diagonal
28496206.706133
Surface area
2436101389915926
Volume
8.1811840647855E+21
Space diagonal
34900583.017451
Perimeter
60449583
Area
1.7581047415515E+14
Altitude
17450291.508725
Surface area
1.7581047415515E+14
Volume
9.6416178839085E+20
Height
9498735.5687109